The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 30, 1977
Filed:
Jun. 28, 1976
Applicant:
Inventors:
LaVern G Soper, Eau Claire, WI (US);
Brent W Dressel, Elk Mound, WI (US);
Assignee:
National Presto Industries, Inc., Eau Claire, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F27D / ;
U.S. Cl.
CPC ...
219438 ; 29509 ; 29611 ; 219439 ; 219462 ;
Abstract
A sheathed electric heater element is fixed to the wall of a cooker by displacing metal from one side of the cooker wall to form an irregular channel having projecting ribs along its two sides, then placing the sheathed heater element between the two ribs and compressing the portions of the sheathed heater element between the channel base and the inner surfaces of the two ribs as the ribs are folded inwardly thereagainst.